TWI854182B - Electrical connector - Google Patents

Abstract

An electrical connector includes an insulative housing, a plurality of conductive terminals and reinforcing members. The insulative housing is provided with a mating surface and a slot recessed from the mating surface and extending in a longitudinal direction. The insulative housing includes two side walls extending along the longitudinal direction and two end walls connecting with opposite ends of the side walls. The conductive terminals are fixed on the insulative housing and include contact portions protruding into the slot and soldering sections extending out of the insulative housing. At least one of the end walls is provided with a groove penetrating the mating surface. The groove penetrates the end wall along the longitudinal direction to communicate with the slot. The reinforcing member includes an end wall portion and a fixing portion fixed to the insulative housing. The end wall portion is accommodated in the groove to form a part of the end wall of the insulative housing, which can effectively increase the the strength of the end wall.

Description

Electrical connectors

The present invention relates to an electrical connector, and more particularly to an electrical connector with better strength.

For related prior art, please refer to the Chinese mainland utility model patent CN208904327U, which discloses an electrical connector, which includes an insulating shell and a conductive terminal installed in the insulating shell. The insulating shell includes a plug-in cavity formed by two opposite side walls and a pair of end walls connecting the two side walls. The side walls are provided with terminal slots. The conductive terminal is fixed in the insulating shell and has a contact portion arranged in the terminal slot and a tail extending out of the insulating shell. When the electrical connector is plugged into a pair of connectors, the tongue plate of the connecting connector may cause wear to the end wall due to oblique insertion or mis-insertion, thereby damaging the end wall.

Therefore, in view of the above problems, it is necessary to provide an improved electrical connector to solve the above problems.

The purpose of the present invention is to provide an electrical connector with better strength during insertion.

To solve the above-mentioned problem, the present invention can adopt the following technical solution: an electrical connector, comprising a longitudinal insulating body, a plurality of conductive terminals and a reinforcing member; the insulating body is provided with a butt joint surface and a slot recessed from the butt joint surface and extending in the longitudinal direction; the insulating body comprises two side walls extending in the longitudinal direction and two end walls connected to the side walls; the conductive terminals are fixed to the insulating body and include a convex The contact portion extends into the slot and the pin extends out of the insulating body; at least one of the end walls is provided with a receiving groove penetrating the butt surface, the receiving groove penetrates the inner and outer sides of the end wall along the longitudinal direction and connects to the slot, the reinforcing member includes an end wall portion and a fixing portion, the fixing portion is fixed to the insulating body, and the end wall portion is received in the receiving groove and constitutes a part of the end wall of the insulating body.

Compared with the prior art, the present invention can effectively enhance the strength of the end wall by providing a reinforcement member to form a part of the end wall of the insulating body, and is not easily damaged by the docking tongue plate due to oblique insertion when plugging with the docking connector. At the same time, the guide portion extending from the docking surface has the function of guiding the insertion of the docking tongue plate, which can further prevent the end wall from being damaged.

1: Insulation body

10: Slot

100:Electrical connector

11: Butt joint

12: Side wall

13: End wall

130: Storage tank

1301: Inner bottom surface

1302: Horizontal inner wall surface

131:Interference groove

132: convex block

1321: Clamping block

1322: abutment block

2: Conductive terminal

21: Contact area

22: Pin

3: Reinforcement

31: End wall

311: Background

312: Horizontal side edge

3121: Barbs

313: Top edge

32: Fixed part

33: Guidance Department

4:Metal casing

40: Receiving cavity

41: First board

410:Through hole

42: Second board

420: Positioning depression

421: Gap

422: Spike structure

5: Cover plate

51: Elastic hook

52: Holding piece

1303: Abutment surface

The first figure is a three-dimensional diagram of the electrical connector of the present invention; the second figure is a partial exploded diagram of the first figure; the third figure is a three-dimensional diagram of the second figure from another angle; the fourth figure is a partial exploded diagram of the first figure from another angle; the fifth figure is a partial exploded diagram of the fourth figure from another angle; the sixth figure is a partial exploded diagram of the second figure; the seventh figure is a partial exploded diagram of the sixth figure; the eighth figure is a three-dimensional diagram of the seventh figure from another angle; the ninth figure is a three-dimensional diagram of the seventh figure from another angle; the tenth figure is a cross-sectional diagram along the X-X line in the second figure; the eleventh figure is a cross-sectional diagram along the XI-XI line in the sixth figure; the twelfth figure is a side view of the sixth figure after the metal shell is removed; the thirteenth figure is a top view of the sixth figure after the metal shell is removed; the fourteenth figure is a partial exploded diagram of another embodiment of the present invention; and the fifteenth figure is a cross-sectional diagram along the XI-XI line after the reinforcement is assembled on the insulating body in another embodiment of the fourteenth figure.

In order to facilitate a better understanding of the purpose, structure, features and effects of the present invention, the present invention is further described with reference to the attached drawings and specific implementation methods.

Referring to the first to eighth figures, the present invention discloses an electrical connector 100, comprising a longitudinal insulating body 1, a plurality of conductive terminals 2 and a reinforcing member 3. The insulating body 1 is provided with a mating surface 11 and a slot 10 recessed from the mating surface 11 and extending in the longitudinal direction. The insulating body 1 comprises two side walls 12 extending in the longitudinal direction and two end walls 13 connecting the side walls 12. The conductive terminal 2 is fixed to the insulating body 1 and comprises a contact portion 21 protruding into the slot 10 and a pin 22 extending out of the insulating body 1. At least one of the end walls 13 is provided with a receiving groove 130 penetrating the mating surface 11. In a preferred embodiment, each of the end walls 13 is provided with the receiving groove 130, and the receiving groove 130 penetrates the inner and outer sides of the end wall 13 along the longitudinal direction and connects to the slot 10. The reinforcing member 3 includes an end wall portion 31 and a fixing portion 32, and the fixing portion 32 is fixed to the insulating body 1. The end wall portion 31 is received in the receiving groove 130 to constitute a part of the end wall 13 of the insulating body 1. Preferably, the reinforcing member 3 is made of metal material. Such a setting is conducive to making the weak end wall 13 have better strength and is not easy to be damaged by the mating tongue plate due to oblique insertion or mis-insertion when plugging with the mating connector (not shown).

In conjunction with FIG. 6 and FIG. 12, the reinforcing member 3 includes a guide portion 33 extending from the top side edge 313 of the end wall portion 31 toward the direction of the butt joint surface 11 and beyond the butt joint surface 11, that is, the guide portion 33 passes through the butt joint surface 11 upward, and the guide portion 33 is inclined outward in the longitudinal direction. The guide portion 33 has the function of guiding the insertion of the butt joint tongue plate of the butt joint connector, which can effectively prevent the end wall 13 from being damaged by the butt joint tongue plate. In conjunction with FIG. 5, from the longitudinal direction, the two transverse ends of the guide portion 33 have overlapping portions with the side wall 12. Referring to Figures 8 to 11, the end wall 13 is provided with an interference groove 131 located below the receiving groove 130 on its inner side surface (not shown). The inner side surface of the end wall 13 is the side facing the slot 10. The interference groove 131 and the receiving groove 130 are connected to each other. The fixing portion 32 of the reinforcement member 3 extends downward from the end wall portion 31 and is fixed to the interference groove 131. The fixing portion 32 and the end wall portion 31 face the slot 10 inwardly. During assembly, the reinforcement member 3 is inserted into the receiving groove 130 from top to bottom until the bottom edge 311 of the end wall portion 31 abuts against the inner bottom surface 1301 of the receiving groove 130 to prevent the reinforcement member 3 from being over-inserted.

As shown in FIGS. 7 to 13, in the transverse direction perpendicular to the longitudinal direction, the receiving groove 130 extends to the two side walls 12, the transverse side edge 312 of the end wall portion 31 abuts against the transverse inner wall surface 1302 of the receiving groove 130, and the top side edge 313 of the end wall portion 31 is lower than the abutting surface 11. Referring to FIGS. 14 to 15, in another preferred embodiment of the present invention, the transverse side edge 312 of the end wall portion 31 is provided with a barb 3121, and the barb 3121 interferes and is retained on the transverse inner wall surface 1302 of the receiving groove 130. Such a configuration can enhance the stability of the assembly of the reinforcement member 3 and the insulating body 1, so that the reinforcement member 3 will not be easily detached from the insulating body 1 due to the plugging and unplugging of the above-mentioned docking connector.

As shown in FIG. 7, FIG. 9 and FIG. 11, the interference groove 131 is recessed from the inner side surface of the end wall 13 and at least partially overlaps with the side wall 12 in the transverse direction, so that the fixing portion 32 can be clamped between the side wall 12 and the end wall 13 to have a better holding effect. In the transverse direction, the length of the receiving groove 130 is greater than the length of the interference groove 131, and the receiving groove 130 forms an upward inner bottom surface 1301 at the portion exceeding the transverse ends of the interference groove 131, and the bottom edge 311 of the end wall portion 31 is mounted on the inner bottom surface 1301.

Referring to the first to sixth figures, the electrical connector 100 includes a metal housing 4 covering the insulating body 1, the metal housing 4 includes a first plate 41 located on the outer sides of the two side walls 12 and a second plate 42 located on the outer sides of a pair of end walls 13 and connected to the first plate 41, the second plate 42 is provided with a positioning recess 420 protruding from the inside to the outside, and the extended end of the guide portion 33 abuts against the positioning recess 420. The matching structure of the guide portion 33 and the positioning recess 420 can enhance the holding effect between each other, so as to further prevent the reinforcement member 3 from being easily dislodged. The end wall 13 includes an inverted T-shaped convex block portion 132 protruding outward from its outer wall surface, and the convex block portion 132 includes a clamping block 1321 extending in the vertical direction and an abutting block 1322 located below the clamping block 1321 and vertically arranged with the clamping block. The lower end of the second plate 42 is recessed with a notch 421 extending in the vertical direction, and the clamping block 1321 is clamped in the notch 421. The ends of the second plate 42 located on both sides of the notch 421 abut against the abutting blocks 1322. The second plate 42 includes a burr structure 422 that protrudes into the notch 421 and interferes with the clamping block 1321. The metal shell 4 is assembled to the insulating body 1 from top to bottom until the lower end of the second plate 42 is mounted on the abutment block 1322. The burr structure 422 interferes with the clamping block 1321 to prevent the metal shell 4 from escaping upward from the insulating body 1.

As shown in Figures 6, 7 and 10, in the transverse direction, the portion of the receiving groove 130 that exceeds the slot 10 forms an outward abutment surface 1303, and the end wall portion 31 of the reinforcing member 3 is clamped between the abutment surface 1303 and the second plate 42 in the inner and outer directions to enhance the stability of the end wall portion 31 in the inner and outer directions.

As shown in FIG. 5, the first plate 41 and the second plate 42 extend to the top of the mating surface 11, and the two first plates 41 and a pair of the second plates 42 are jointly arranged to form a receiving cavity 40. The receiving cavity 40 is used to accommodate the above-mentioned docking connector. When the docking connector is plugged and matched with the electrical connector 100, the receiving cavity 40 has a preliminary guiding effect on the docking connector. When the docking tongue of the docking connector enters the receiving cavity 40, the guide parts 33 located at both ends of the longitudinal direction can further guide the docking tongue to be accurately inserted into the slot 10. At the same time, since the end wall part 31 of the reinforcement member 3 constitutes a part of the end wall 13 of the insulating body 1 near the mating surface 11, it has high strength and good friction resistance, and can effectively protect the end wall 13 from damage.

Referring to the first to third figures, the electrical connector 100 includes a cover plate 5 shielding the front end of the receiving cavity 40, and the two lateral sides of the cover plate 5 respectively include elastic hooks 51 bent downward and extended corresponding to the first plate 41, and the first plate 41 is provided with a through hole 410, and the elastic hook 51 extends to the receiving cavity 40 and is elastically buckled in the through hole 410. The cover plate 5 is covered and fixed to the top end of the metal housing 4 through the mutual cooperation of the elastic hook 51 and the through hole 410. When the electrical connector 100 is in transportation or not in use, the cover plate 5 can prevent dirt from entering the receiving cavity 40 and the slot 10. In a preferred embodiment, at least two of the elastic hooks 51 are provided on one side of the cover plate 5. In a preferred embodiment, at least one side of the cover plate 5 on which the two elastic hooks 51 are provided also includes a retaining piece 52 that bends and extends backward. The retaining piece 52 is provided between the two elastic hooks 51 and is closely attached to the outer side of the first plate 41. The retaining piece 52 is convenient for the user to grasp to realize the disassembly and assembly of the cover plate 5.

The above embodiments are preferred embodiments of the present invention, but not all embodiments. Any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the specification of the present invention are covered by the scope of the patent application of the present invention.

11: Butt joint

12: Side wall

13: End wall

130: Storage tank

1301: Inner bottom surface

132: convex block

31: End wall

313: Top edge

33: Guidance Department

40: Receiving cavity

41: First board

410:Through hole

42: Second board

420: Positioning depression

421: Gap

422: Spike structure

Claims (9)

An electrical connector comprises a longitudinal insulating body, which is provided with a butt joint surface and a slot recessed from the butt joint surface and extending in the longitudinal direction, wherein the insulating body comprises two side walls extending in the longitudinal direction and two end walls connected to the side walls; a plurality of conductive terminals are fixed to the insulating body and comprise contact portions protruding into the slot and pins extending out of the insulating body; and a reinforcing member; wherein at least one of the end walls is provided with a contact portion penetrating the butt joint surface and a reinforcing member extending in the longitudinal direction. The receiving groove is formed on the surface of the insulating body, and the receiving groove penetrates the inner and outer sides of the end wall along the longitudinal direction and is connected to the slot. The reinforcing member includes an end wall portion and a fixing portion, and the fixing portion is fixed to the insulating body. The end wall portion is received in the receiving groove and constitutes a part of the end wall of the insulating body. The end wall is provided with an interference groove located below the receiving groove on its inner side surface, and the fixing portion of the reinforcing member extends downward from the end wall portion and is fixed in the interference groove. An electrical connector as described in claim 1, wherein the reinforcement member includes a guide portion extending from the end wall portion toward the mating surface and beyond the mating surface, and the guide portion is inclined outward in the longitudinal direction. An electrical connector as described in claim 1, wherein the fixing portion and the end wall portion face inwardly toward the slot. An electrical connector as described in claim 1, wherein the bottom edge of the end wall portion abuts against the inner bottom surface of the receiving groove. As described in claim 4, the electrical connector, wherein in the transverse direction perpendicular to the longitudinal direction, the accommodating groove extends to the two side walls, the transverse side edge of the end wall portion abuts against the transverse inner wall surface of the accommodating groove, and the top side edge of the end wall portion is lower than the mating surface. An electrical connector as described in claim 5, wherein the lateral side edge of the end wall portion is provided with barbs, and the barbs interfere with and are retained on the lateral inner wall surface of the receiving groove. An electrical connector as described in claim 5, wherein the reinforcing member includes a guide portion extending upward and outward obliquely from the top side edge of the end wall portion, and the guide portion passes upward through the mating surface; viewed from the longitudinal direction, the two lateral ends of the guide portion have overlapping portions with the side wall. An electrical connector as described in claim 2, wherein the electrical connector includes a metal shell covering the insulating body, the metal shell includes a first plate located outside the two side walls and a second plate located outside a pair of end walls and connected to the first plate, the second plate is provided with a positioning recess protruding from the inside to the outside, and the extended end of the guide portion abuts against the positioning recess. The electrical connector as described in claim 8, wherein the end wall includes an inverted T-shaped protrusion protruding outward from its outer wall surface, the protrusion includes a clamping block extending in the up-down direction and an abutment block located below the clamping block and vertically arranged with the clamping block, the lower end of the second plate is recessed with a notch extending in the up-down direction, the clamping block is clamped in the notch, and the ends of the second plate located on both sides of the notch abut against the abutment block.

Images